Grails

Grails关注将"规约编程"(coding by convention)引入Groovy。它是一个开放源网络应用构架， 对Groovy语言起到杠杆作用，并且对Java网络开发起到补足作用。你可以用Grails 作为独立开发环境, 它隐藏了所有的配置细节，也可以将它同和入你的Java商务逻辑。

Grails关注与使开发最简化，而且Grails的解决方案来自于广泛的开发者，不只局限于Java社区。

Grails构建在开源技术如Spring、Hibernate和SiteMesh之上，提供了一个类似于Rails 的平台可以与Java平台无缝集成. Groovy是一种“动态”或指令语言。动态语言一般用来加速和简化程序撰写。与Python或Ruby等其他指令语言不同的是，用Groovy撰写的程序，可与Java虚拟器结合。

Install

wget http://download.huihoo.com/grails/grails-bin-1.0.1.zip
GRAILS_HOME= C:\grails-1.0.1 or /usr/local/grails-1.0.1 
Add the "%GRAILS_HOME%\bin" directory to your PATH environment variable
Add the "%GRAILS_HOME%\ant\bin directory to your PATH environment variable.

grails create-app
input project name: my-project
cd my-project
grails create-domain-class
input domain name: Book

my-project\grails-app\domain\Book.groovy

class Book {
   String title
   String author
}

my-project\grails-app\conf\BootStrap.groovy

class BootStrap {

   def init = { servletContext ->
       // Create some test data
       new Book(author:"Stephen King",title:"The Shining").save()
       new Book(author:"James Patterson",title:"Along Came a Spider").save()
   }
   def destroy = {
   }
}

my-project\grails-app\controllers\BookController.groovy

class BookController {
    def scaffold = Book
}
grails run-app
http://localhost:8080/my-project/
http://localhost:8080/my-project/book
运行成功 :)

To upgrade your existing Grails projects you must run:

grails clean
grails upgrade

相关项目

• Scala

相关链接

• http://grails.codehaus.org/
• http://www.g2one.com/
• http://www.groovygrails.com
• http://download.huihoo.com/grails/
• http://docs.huihoo.com/grails/